Fixed some typos #2

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twillis209 wants to merge 2 commits intojamesliley:masterfrom

twillis209:twillis209

Commits on Nov 17, 2020

Fixed typos with folds, labelled R chunks so purl can run, added source to get cfdr code
twillis209
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Commits on Nov 20, 2020

Updated .gitignore
twillis209
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